lucene入门-搜索方式

1

  1 package com.home.utils;
  2 
  3 import java.util.ArrayList;
  4 import java.util.List;
  5 
  6 import org.apache.lucene.document.Document;
  7 import org.apache.lucene.index.Term;
  8 import org.apache.lucene.search.BooleanClause.Occur;
  9 import org.apache.lucene.search.BooleanQuery;
 10 import org.apache.lucene.search.IndexSearcher;
 11 import org.apache.lucene.search.MatchAllDocsQuery;
 12 import org.apache.lucene.search.NumericRangeQuery;
 13 import org.apache.lucene.search.PhraseQuery;
 14 import org.apache.lucene.search.Query;
 15 import org.apache.lucene.search.ScoreDoc;
 16 import org.apache.lucene.search.TermQuery;
 17 import org.apache.lucene.search.TopDocs;
 18 import org.apache.lucene.search.WildcardQuery;
 19 import org.junit.Test;
 20 
 21 /**
 22  * 1、关键词查询 2、查询所有文档 3、范围查询 4、通配符查询 5、短语查询 6、Boolean查询
 23  * 
 24  * @author Administrator
 25  * 
 26  */
 27 public class QueryTest {
 28 
 29     private void showData(Query query) throws Exception {
 30         IndexSearcher indexSearcher = new IndexSearcher(LuceneUtils.directory);
 31         TopDocs topDocs = indexSearcher.search(query, 25);
 32         ScoreDoc[] scoreDocs = topDocs.scoreDocs;
 33         List<Article> articleList = new ArrayList<Article>();
 34         for (ScoreDoc scoreDoc : scoreDocs) {
 35             Document document = indexSearcher.doc(scoreDoc.doc);
 36             Article article = DocumentUtils.document2Article(document);
 37             articleList.add(article);
 38         }
 39 
 40         for (Article article : articleList) {
 41             System.out.println(article.getId());
 42             System.out.println(article.getTitle());
 43             System.out.println(article.getContent());
 44         }
 45     }
 46 
 47     /**
 48      * 关键词查询 因为没有分词器，所以区分大小写
 49      */
 50     @Test
 51     public void testTermQuery() throws Exception {
 52         Term term = new Term("title", "lucene");
 53         Query query = new TermQuery(term);
 54         this.showData(query);
 55     }
 56 
 57     /**
 58      * 查询所有的文档
 59      */
 60     @Test
 61     public void testAllDocQuery() throws Exception {
 62         Query query = new MatchAllDocsQuery();
 63         this.showData(query);
 64     }
 65 
 66     /**
 67      * 通配符查询 * 代表任意多个任意字符 ? 任意一个任意字符
 68      */
 69     @Test
 70     public void testWildCartQuery() throws Exception {
 71         Term term = new Term("title", "*.java");
 72         Query query = new WildcardQuery(term);
 73         this.showData(query);
 74     }
 75 
 76     /**
 77      * 短语查询 所有的关键词对象必须针对同一个属性
 78      * 
 79      * @param query
 80      * @throws Exception
 81      */
 82     @Test
 83     public void testPharseQuery() throws Exception {
 84         Term term = new Term("title", "lucene");
 85         Term term2 = new Term("title", "搜索");
 86         PhraseQuery query = new PhraseQuery();
 87         query.add(term);
 88         query.add(term2, 4);
 89         this.showData(query);
 90 
 91     }
 92 
 93     /**
 94      * boolean查询 各种关键词的组合
 95      * 
 96      * @param query
 97      * @throws Exception
 98      */
 99     @Test
100     public void testBooleanQuery() throws Exception {
101         Term term = new Term("title", "北京");
102         TermQuery termQuery = new TermQuery(term);
103         Term term2 = new Term("title", "美女");
104         TermQuery termQuery2 = new TermQuery(term2);
105         Term term3 = new Term("title", "北京美女");
106         TermQuery termQuery3 = new TermQuery(term3);
107 
108         BooleanQuery booleanQuery = new BooleanQuery();
109         booleanQuery.add(termQuery, Occur.SHOULD);
110         booleanQuery.add(termQuery2, Occur.SHOULD);
111         booleanQuery.add(termQuery3, Occur.SHOULD);
112         this.showData(booleanQuery);
113     }
114     
115      /**
116       * 范围查询
117       * @param query
118       * @throws Exception
119       */
120      @Test
121      public void testRangeQuery() throws Exception{
122       Query query = NumericRangeQuery.newLongRange("id", 5L, 10L, true, true);
123       this.showData(query);
124      }
125      
126      
127 }

原文地址：https://www.cnblogs.com/sharpest/p/5992564.html

1

  1 package com.home.utils;
  2 
  3 import java.util.ArrayList;
  4 import java.util.List;
  5 
  6 import org.apache.lucene.document.Document;
  7 import org.apache.lucene.index.Term;
  8 import org.apache.lucene.search.BooleanClause.Occur;
  9 import org.apache.lucene.search.BooleanQuery;
 10 import org.apache.lucene.search.IndexSearcher;
 11 import org.apache.lucene.search.MatchAllDocsQuery;
 12 import org.apache.lucene.search.NumericRangeQuery;
 13 import org.apache.lucene.search.PhraseQuery;
 14 import org.apache.lucene.search.Query;
 15 import org.apache.lucene.search.ScoreDoc;
 16 import org.apache.lucene.search.TermQuery;
 17 import org.apache.lucene.search.TopDocs;
 18 import org.apache.lucene.search.WildcardQuery;
 19 import org.junit.Test;
 20 
 21 /**
 22  * 1、关键词查询 2、查询所有文档 3、范围查询 4、通配符查询 5、短语查询 6、Boolean查询
 23  * 
 24  * @author Administrator
 25  * 
 26  */
 27 public class QueryTest {
 28 
 29     private void showData(Query query) throws Exception {
 30         IndexSearcher indexSearcher = new IndexSearcher(LuceneUtils.directory);
 31         TopDocs topDocs = indexSearcher.search(query, 25);
 32         ScoreDoc[] scoreDocs = topDocs.scoreDocs;
 33         List<Article> articleList = new ArrayList<Article>();
 34         for (ScoreDoc scoreDoc : scoreDocs) {
 35             Document document = indexSearcher.doc(scoreDoc.doc);
 36             Article article = DocumentUtils.document2Article(document);
 37             articleList.add(article);
 38         }
 39 
 40         for (Article article : articleList) {
 41             System.out.println(article.getId());
 42             System.out.println(article.getTitle());
 43             System.out.println(article.getContent());
 44         }
 45     }
 46 
 47     /**
 48      * 关键词查询 因为没有分词器，所以区分大小写
 49      */
 50     @Test
 51     public void testTermQuery() throws Exception {
 52         Term term = new Term("title", "lucene");
 53         Query query = new TermQuery(term);
 54         this.showData(query);
 55     }
 56 
 57     /**
 58      * 查询所有的文档
 59      */
 60     @Test
 61     public void testAllDocQuery() throws Exception {
 62         Query query = new MatchAllDocsQuery();
 63         this.showData(query);
 64     }
 65 
 66     /**
 67      * 通配符查询 * 代表任意多个任意字符 ? 任意一个任意字符
 68      */
 69     @Test
 70     public void testWildCartQuery() throws Exception {
 71         Term term = new Term("title", "*.java");
 72         Query query = new WildcardQuery(term);
 73         this.showData(query);
 74     }
 75 
 76     /**
 77      * 短语查询 所有的关键词对象必须针对同一个属性
 78      * 
 79      * @param query
 80      * @throws Exception
 81      */
 82     @Test
 83     public void testPharseQuery() throws Exception {
 84         Term term = new Term("title", "lucene");
 85         Term term2 = new Term("title", "搜索");
 86         PhraseQuery query = new PhraseQuery();
 87         query.add(term);
 88         query.add(term2, 4);
 89         this.showData(query);
 90 
 91     }
 92 
 93     /**
 94      * boolean查询 各种关键词的组合
 95      * 
 96      * @param query
 97      * @throws Exception
 98      */
 99     @Test
100     public void testBooleanQuery() throws Exception {
101         Term term = new Term("title", "北京");
102         TermQuery termQuery = new TermQuery(term);
103         Term term2 = new Term("title", "美女");
104         TermQuery termQuery2 = new TermQuery(term2);
105         Term term3 = new Term("title", "北京美女");
106         TermQuery termQuery3 = new TermQuery(term3);
107 
108         BooleanQuery booleanQuery = new BooleanQuery();
109         booleanQuery.add(termQuery, Occur.SHOULD);
110         booleanQuery.add(termQuery2, Occur.SHOULD);
111         booleanQuery.add(termQuery3, Occur.SHOULD);
112         this.showData(booleanQuery);
113     }
114     
115      /**
116       * 范围查询
117       * @param query
118       * @throws Exception
119       */
120      @Test
121      public void testRangeQuery() throws Exception{
122       Query query = NumericRangeQuery.newLongRange("id", 5L, 10L, true, true);
123       this.showData(query);
124      }
125      
126      
127 }

原文地址：https://www.cnblogs.com/sharpest/p/5992564.html